Base | Representation |
---|---|
bin | 1110010011011101101100… |
… | …01111111100100100000111 |
3 | 11010101002010012222012120200 |
4 | 13021232312033330210013 |
5 | 13110330022401022101 |
6 | 150522135213301543 |
7 | 6424361531126403 |
oct | 711566617744407 |
9 | 133332105865520 |
10 | 31455103142151 |
11 | a028041766647 |
12 | 36402624948b3 |
13 | 1472285118480 |
14 | 7aa613d56103 |
15 | 39834580a986 |
hex | 1c9bb63fc907 |
31455103142151 has 24 divisors (see below), whose sum is σ = 50508552721536. Its totient is φ = 18732567625920.
The previous prime is 31455103142129. The next prime is 31455103142167. The reversal of 31455103142151 is 15124130155413.
31455103142151 is a `hidden beast` number, since 3 + 1 + 4 + 551 + 0 + 31 + 4 + 21 + 51 = 666.
It is not a de Polignac number, because 31455103142151 - 213 = 31455103133959 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31455103102151) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4336238880 + ... + 4336246133.
It is an arithmetic number, because the mean of its divisors is an integer number (2104523030064).
Almost surely, 231455103142151 is an apocalyptic number.
31455103142151 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
31455103142151 is a deficient number, since it is larger than the sum of its proper divisors (19053449579385).
31455103142151 is a wasteful number, since it uses less digits than its factorization.
31455103142151 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8672485063 (or 8672485060 counting only the distinct ones).
The product of its (nonzero) digits is 36000, while the sum is 36.
Adding to 31455103142151 its reverse (15124130155413), we get a palindrome (46579233297564).
The spelling of 31455103142151 in words is "thirty-one trillion, four hundred fifty-five billion, one hundred three million, one hundred forty-two thousand, one hundred fifty-one".
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